You've reached the website of Robert H. Gass, Ph.D.I'm a professor of Communication Studies at California StateUniversity.BioI earned my Ph.D. at the University of Kansas in 1983. I am a professor of Human CommunicationStudies at California State University, Fullerton.
I am currently serving as chair of the department. My areas ofexpertise are argumentation, persuasion,
social influence, and compliance gaining. I have published two texts(with co-author John
Seiter) and over 70 scholarly articles, book chapters, published conference
proceedings,and professional papers. My recent research focuses on credibility
in public diplomacy, visual persuasion, andinterpersonal influence. My text with John S. Seiter, Persuasion, Social Influence, and Compliance Gaining, isnow in its
5th edition and is currently the best-selling persuasion text in the field of
communication studies.I amcurrently completing an argumentation text,
tentatively titled Arguing, Reasoning,
and Thinking Well. I have

served as an advisor/consultant to the California
Dairy Council, California Association of Realtors, and Caltrans.